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From: Hanjun Guo <hanjun.guo@linaro.org>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Catalin Marinas <catalin.marinas@arm.com>,
	linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Bjorn Helgaas <bhelgaas@google.com>,
	rric@kernel.org, Grant Likely <grant.likely@linaro.org>,
	Sudeep Holla <Sudeep.Holla@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Charles.Garcia-Tobin@arm.com, lorenzo.pieralisi@arm.com,
	linaro-acpi@lists.linaro.org,
	Graeme Gregory <graeme.gregory@linaro.org>
Subject: [PATCH v4 12/13] ARM64 / ACPI: if we chose to boot from acpi then disable FDT
Date: Fri, 27 Jun 2014 11:49:35 +0800	[thread overview]
Message-ID: <1403840976-7456-13-git-send-email-hanjun.guo@linaro.org> (raw)
In-Reply-To: <1403840976-7456-1-git-send-email-hanjun.guo@linaro.org>

From: Graeme Gregory <graeme.gregory@linaro.org>

If the early boot methods of acpi are happy that we have valid ACPI
tables and acpi=off has not been passed. Then do not unflat devicetree
effectively disabling further hardware probing from DT.

Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
---
 arch/arm64/kernel/setup.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 9dedb0b..487fd1f 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -394,7 +394,8 @@ void __init setup_arch(char **cmdline_p)
 
 	efi_idmap_init();
 
-	unflatten_device_tree();
+	if (acpi_disabled)
+		unflatten_device_tree();
 
 	psci_init();
 
-- 
1.7.9.5

WARNING: multiple messages have this Message-ID (diff)
From: hanjun.guo@linaro.org (Hanjun Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 12/13] ARM64 / ACPI: if we chose to boot from acpi then disable FDT
Date: Fri, 27 Jun 2014 11:49:35 +0800	[thread overview]
Message-ID: <1403840976-7456-13-git-send-email-hanjun.guo@linaro.org> (raw)
In-Reply-To: <1403840976-7456-1-git-send-email-hanjun.guo@linaro.org>

From: Graeme Gregory <graeme.gregory@linaro.org>

If the early boot methods of acpi are happy that we have valid ACPI
tables and acpi=off has not been passed. Then do not unflat devicetree
effectively disabling further hardware probing from DT.

Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
---
 arch/arm64/kernel/setup.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 9dedb0b..487fd1f 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -394,7 +394,8 @@ void __init setup_arch(char **cmdline_p)
 
 	efi_idmap_init();
 
-	unflatten_device_tree();
+	if (acpi_disabled)
+		unflatten_device_tree();
 
 	psci_init();
 
-- 
1.7.9.5

  parent reply	other threads:[~2014-06-27  3:49 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-27  3:49 [PATCH v4 00/13] Enable ACPI on ARM64 in Kconfig Hanjun Guo
2014-06-27  3:49 ` Hanjun Guo
2014-06-27  3:49 ` [PATCH v4 01/13] acpi: arm64 does not have a BIOS add config for BIOS table scan Hanjun Guo
2014-06-27  3:49   ` Hanjun Guo
2014-06-27  3:49 ` [PATCH v4 02/13] ACPI: Don't use acpi_lapic in ACPI core code Hanjun Guo
2014-06-27  3:49   ` Hanjun Guo
2014-06-27  3:49 ` [PATCH v4 03/13] ACPI / processor: Introduce ARCH_HAS_ACPI_PDC Hanjun Guo
2014-06-27  3:49   ` Hanjun Guo
2014-06-27  3:49 ` [PATCH v4 04/13] ARM64 : Add dummy asm/cpu.h Hanjun Guo
2014-06-27  3:49   ` Hanjun Guo
2014-06-27  3:49 ` [PATCH v4 05/13] ARM64 / ACPI: Introduce arm-core.c and its related head file Hanjun Guo
2014-06-27  3:49   ` Hanjun Guo
2014-06-30 16:24   ` Catalin Marinas
2014-06-30 16:24     ` Catalin Marinas
2014-06-30 16:24     ` Catalin Marinas
2014-06-30 17:21     ` Graeme Gregory
2014-06-30 17:21       ` Graeme Gregory
2014-06-30 17:21       ` Graeme Gregory
2014-06-27  3:49 ` [PATCH v4 06/13] ARM64 / ACPI: Introduce early_param for "acpi" Hanjun Guo
2014-06-27  3:49   ` Hanjun Guo
2014-06-27  9:07   ` Arnd Bergmann
2014-06-27  9:07     ` Arnd Bergmann
2014-06-27 10:57     ` Graeme Gregory
2014-06-27 10:57       ` Graeme Gregory
2014-06-27 10:57       ` Graeme Gregory
2014-06-27  3:49 ` [PATCH v4 07/13] ARM64 / ACPI: Introduce lowlevel suspend function Hanjun Guo
2014-06-27  3:49   ` Hanjun Guo
2014-06-30 16:28   ` Catalin Marinas
2014-06-30 16:28     ` Catalin Marinas
2014-06-30 16:28     ` Catalin Marinas
2014-06-27  3:49 ` [PATCH v4 08/13] ARM64 / ACPI: Introduce arch_fix_phys_package_id() for cpu topology Hanjun Guo
2014-06-27  3:49   ` Hanjun Guo
2014-06-27  3:49 ` [PATCH v4 09/13] ARM64 / ACPI: Introduce PCI functions for ACPI on ARM64 Hanjun Guo
2014-06-27  3:49   ` Hanjun Guo
2014-06-27  3:49 ` [PATCH v4 10/13] ACPI: Make EC debugfs depend on X86 || IA64 in Kconfig Hanjun Guo
2014-06-27  3:49   ` Hanjun Guo
2014-06-27  3:49 ` [PATCH v4 11/13] ARM64 / ACPI: Select ACPI_REDUCED_HARDWARE_ONLY if ACPI is enabled on ARM64 Hanjun Guo
2014-06-27  3:49   ` Hanjun Guo
2014-06-27  3:49 ` Hanjun Guo [this message]
2014-06-27  3:49   ` [PATCH v4 12/13] ARM64 / ACPI: if we chose to boot from acpi then disable FDT Hanjun Guo
2014-06-27  9:09   ` [Linaro-acpi] " Arnd Bergmann
2014-06-27  9:09     ` Arnd Bergmann
2014-06-27  3:49 ` [PATCH v4 13/13] ARM64 / ACPI: Enable ARM64 in Kconfig Hanjun Guo
2014-06-27  3:49   ` Hanjun Guo
2014-06-30 10:46   ` Catalin Marinas
2014-06-30 10:46     ` Catalin Marinas
2014-06-30 10:46     ` Catalin Marinas
2014-07-01  7:54     ` Hanjun Guo
2014-07-01  7:54       ` Hanjun Guo
2014-07-01  7:54       ` Hanjun Guo
2014-07-01  8:20       ` Hanjun Guo
2014-07-01  8:20         ` Hanjun Guo
2014-07-01  8:20         ` Hanjun Guo
2014-07-01  9:22         ` Catalin Marinas
2014-07-01  9:22           ` Catalin Marinas
2014-07-01  9:22           ` Catalin Marinas

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